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(No Model.) 7 2 Sheets-8heet 1.

T. R. MORGAN, Sr. RIVETER.

w w .W m w A M I I 1?: w fi www 0.. wasmua'rnn u c (No Model.) 2 Sheets-Sheet? L. R. MORGAN, Sr. BIVETER Patented July 13, 1897.

H \\k ui as i Tw/ W I llmrnn STATES THOMAS E. MORGAN, SR., OF ALLIANCE, OHIO, ASSIGNOR OF THREE-FOURTHS TO THOMAS R. MORGAN, JR, JOHN R. MORGAN, AND IVILLIAM I'I. MORGAN, OF SAME PLACE.

RIVETER.

SPECIFICATION forming part of Letters Patent No. 586,197, dated July 13, 1897.

Application filed September 5, 1894. Serial No. 522,207. (No model.)

To aZZ whom it may concern: other is energized said core will move in the Be it known that I, THOMAS R. MORGAN, reverse direction. Sr., of Alliance, in the county of Stark and To one end of the core D a tool D is se- State of Ohio, have invented certain new and cured and projects up through the end of the 5 useful Improvements in Riveters; and I do opening 0. In the drawings the tool reprehereby declare the following to be afull, clear, sented is a die adapted to upset the end of a and exact description of the invention, such rivet e passing through the overlapping ends as will enable others skilled in the art to which of two steel or iron plates E E. it appertains to make and use the same. a In order to properly support the frame, so 1o Myinvention relates to an improvementin that the accurate alinement of the tool with riveters; and it consists, broadly, in a recipthe work will be insured, I provide two (more rocating electric motor carrying a rivetingor less) electromagnets F F, included in cirdie and electromagnetic devices constructed cuit with a suitable generator and adapted and adapted to hold the motor in fixed posito become rigidly attached to the object un- 15 tion relative to the work. der treatment by magnetic attraction.

My invention further consists in the parts Each magnet F is adjustably supported by and combinations of parts, as will be more a ball-and-socket connection with a screw G, fully described, and pointed out in the claims. which passes through the screw-threaded per- In the accompanying drawings, Figure l is foration a in one of the lateral arms B, and 20 a view in elevation of one form of apparatus said screws are prevented from accidental embodying my invention. Fig. 2 is a secdisplacement bymeans of nutsgand washers. tional view of a riveter designed particularly Adapted to act in connection with the for riveting in close places, where the form parts above described is a frame II, comprisshown in Fig. 1 could not be used. ing a hollow central or body portion h and 2 5 In the construction disclosed 'in Fig. 1, lateral arms 72. h, having screw-threaded which is designed more particularly for rivperforations h through which screws I I eting the overlapping edges of plates, A reppass, and trunnion a to which the suspendresents a frame comprising a central hollow ing devices are secured. To one end. of each body portion a, closed at one end by a reof these screws an electromagnet J is con- 3o movable cap a, and lateral arms B, having nected by a ball-and-socket joint, and said screw-threaded perforations a and trunnions electromagnets are energized by an electric a by which same is supported. Within the current from any convenient source of elechollow body a a casing 19, preferably of nontric generation. The electromagnets are magnetic material, is located, said casing bemade to attract the plates E E, and the frame 5 ing contracted at a point between its ends, as H is thus retained properly in position, as

at b. The casing b is also contracted to proshown in Fig. 1. duce a lining for an opening cin the project- Within the chamber 71 of the hollow body ing end d of the frame. Within the casing portion h of frame Ha movable plunger K is Z) two helices O O are located and separated located and provided with ahead K, adapted o 40 by the contracted portion b of said casing. to neatly fit and freely move in said cham- The helices O O are provided with a comher. The frame H is provided with a conical mon iron core D, thus producing two soleninwardlyprojecting portion 4;, having an oids with a common core, said core normally opening or passage & communicating with projecting through one helix and into the the larger opening or chamber din said frame. .5 other. The helices O O are included in in- The opening or passage t is preferably prodependent electric circuits with a suitable vided' with a lining "6 through which the generator, and suitable switch mechanism plunger passes. The plunger K projects will be provided whereby to close the circuit some distance beyond the frame H and at its through said helices alternately. Thehelices free end is made with a die '5 to receive the I00 50 are so wound that when one is energized the head of the rivet, thus constituting it a holdcore will move in one direction and when the ing-die. This holding die is retained in proper engagement with the head of a rivet by means of a cam j, carried by a lever j, said cam being adapted to enter the chamber t'and bear against the head Kof the plunger K.

To move the holding-die to the position shown in Fig. 1 the cam j will be operated by means of a suitable handle secured to the cam. A spring Z is coiled about the plunger K within the chamber t' and bears at its respective ends against the head K and a shoulder m at one end of said chamber 1., the purpose of this spring being to move the holding-die away from the head of the rivet when the opposite end of the latter shall have been upset, as presently explained, and the cam shall have been moved out of engagement with the head K of the plunger.

The rivet having been passed through alined perforations in the overlapping edges of the plates E E, the frame II will be placed in position as above described, so as to cause the head of the rivet to enter the recess of the holding-die. The tool-holding devices will then be placed in position on the opposite sides of the plates E E, so that the tool D will be in exact alineinent with the rivet.

An electric current will now be made to pass through the helix 0 in such direction as to cause the core D to be drawn into said helix, thus withdrawing the tool D from the end of the rivet. lVhen the core shall have moved to the extent of its rearward stroke, the switch above alluded to will operate automatically to open the circuit through the helix 0 and cause it to flow through the helix 0. The helix C being thus de'e'nergized and the helix C energized, the core D will be drawn into the latter and made to make its forward stroke and cause the tool D to come forcibly into contact with the rivet to upset the end thereof. hen this action shall have taken place, the current will be again shifted from the helix 0 to the helix 0 and the rearward stroke of the core again accomplished.

The reciprocation of the core will continue automatically as long as the current is passed alternately through the helices, and the current will be supplied to the helices until the rivet shall have been upset to the proper extent.

In the construction disclosed in Fig. 2, which is designed for close quarters, such as riveting the ends and sides of plates to angle-irons, I employ the frames 0, which are in the form of brackets, and provide each with two electromagnets O, the latter being constructed and secured to the frames, as in Fig. 1. Both magnets are located to one side of the tools, which, as shown, are so located that they can work in a corner or well up to the ceiling or down to the floor, as necessity demands. In this construction the holdingdie and rivetingdie are constructed and operated in the manner described in connection with Fig. 1.

It is evident that numerous slight changes might be resorted to in the relative arrangement of parts herein shown and described without departing from the spirit and scope of my invention. Hence I would have it understood that I do not wish to restrict myself to the exact construction of parts herein shown and described; but,

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination with a frame, a toolholder carried by said frame, and means for moving said tool-holder, of screws adj ustably secured to said frame, and electromagnets connected to the screws by universal joints.

2. The combination with a frame, a toolholder carried thereby and devices constructed and adapted to reciprocate said tool-holder, of screws adjustably secured to said frame, and electromagnetic devices for retaining the frame in fixed relation to the work connected to the screws by universal joints.

3. The combination with two frames, one frame carrying a tool-holder and devices for moving said tool-holder, and the other frame carrying a holding-up tool, of screws adjustably secured to said frames, and electromagnetic devices for retaining said frames in fixed relation to the work, connected to the screws by universal joints.

4. In a riveter, the combination with two frames, one carrying a reciprocating electromotor having a riveting-tool, and the other frame carrying a holding-up tool, of screws adjustably secured to said frames, and electromagnetic devices for retaining said frames in fixed relation to the Work, connected to the screws by universal joints.

5. The combination with two frames, a reciprocating electric motor mounted in one frame and carrying a riveting-tool, and a holding-up die carried by the other frame, of screws adj ustably secured to each frame, and an electromagnet for each screw, each magnet being connected to its screw by a universal joint.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

THOMAS E. MORGAN, SR.

\Vitnesses:

IV. 11. RAMSEY, A. O. STRONG.

IIO 

